Backed by Y Combinator
AI agents that find vulnerabilities in your web apps, APIs, and infrastructure. Continuously, not once a year.
See first findings in 24 hours
$30B+
in breaches prevented
<1%
false positives
24/7
continuous coverage
Built by the team that secured:
Built by the team that secured:
[ the problem ]
Software ships every day.Security testing hasn't kept up. #
Old Way
Weeks to schedule
and scope.
Six figures per engagement.
A PDF that's already stale on arrival.
One snapshot, then blind for 12 months.
The Parameter Way
Point us at your app,
easy scoping.
Runs continuously,
on demand.
Every finding ships a working proof-of-concept.
Probes every hour, every day.
[ how it works ]
[ The product ]
Findings you can act on.Validated, prioritized, and ready to assign. #
Book a call
See first findings in 24 hours
Findings
›
Acme API pentest
›
ACME-142
SQL injection in /api/users search param
The search parameter on GET /api/users is concatenated directly into a SQL query without parameterization. An attacker can inject arbitrary SQL to read or modify data belonging to other tenants.
Reproduction
GET /api/users?search=' OR '1'='1 → 200 OK · returns all users across tenants
The vulnerable code interpolates the raw value into the WHERE clause in users-repository.ts:42.
Activity
Jordan Lee
created this finding
3d ago
Alex Rivera
changed status to In Progress
2d ago
Maya Chen
assigned this to Jordan Lee
1d ago
Add a comment...
Properties
Status
Open
Severity
Critical
Assignee
J
Jordan Lee
Rating
CWE
CWE-89
Deadline
Overdue · Jun 12
Locations
users-repository.ts:42 Open a fix PR
Create Linear Issue
Copy AI Instructions
Search findings
Open
21
In Progress
6
Fixed
15
Showing 1 to 25 of 47 findings
‹ Previous
Page 1 of 2
Next ›
[ coverage ]
One platform.Every layer of your security. #
Parameter runs continuously across your code, cloud, and dependencies, and puts everything it finds in one place.
Pentesting agent
Continuous, autonomous pentesting, with a working proof-of-concept for every finding.
Sentinel
An AI reviewer on every pull request. Catches vulnerabilities before they merge.
Cloud security
Continuous checks for cloud misconfigurations, exposed services, and takeover risk.
Secrets detection
Leaked keys, tokens, and credentials found across your repos and history.
Dependency management
Vulnerable and outdated packages flagged, with a clear path to safe versions.
More detail on each surface
Learn more
[ safety ]
Aggressive testing.Zero blast radius. #
All the findings of a real attack, none of the fallout.
learn more about safety
Confirm and hold
Agents prove a vulnerability exists, then stop. No chaining or escalation without your explicit go-ahead.
Scoped, never stray
Agents stay inside the targets you authorize. No wandering into systems that aren’t in scope.
No destructive actions
No dropped tables, no deleted data, no denial of service. Testing is safe against production by design.
Full audit trail
Every action an agent takes is logged and reviewable, so you can see exactly what happened.
Start testing today. #
A URL and credentials is all it takes.
First findings land within 24 hours.